<script type="module">
	{
		document.write(`将3号位复制到0号位：${[1, 2, 3, 4, 5].copyWithin(0, 3, 4)}<br></br>`);
		
		const i32a = new Int32Array([1, 2, 3, 4, 5]);
		document.write(`将2号位到数组结束，复制到0号：${i32a.copyWithin(0, 2)}<br></br>`);
	}
</script>